Sash-fastener



(No Model.)

' G. GIBSON.

SASH PASTENER. No. 491,882. Patented Feb. 14, 1893.

mi Il Enron.

GEROLT GIBSON, OF ST. LOUIS, MISSOURI.

SASH-FASTEN ER.,

SPECIFICATION forming part of Letters Patent No. 491,882, dated February14,1893.

Application filed .Tune 3, 1892. Serial No. 435,416. (No model.)

To all whom it may concern* Be it known that I, GEROLT GIBSON, a citizenof the United States, residing at St. Louis, in the State of Missouri,have invented certain new and useful Improvements in Sash- Locks; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

My invention relates to an improved sash lock, more particularly for theupper sashes and it has for its object to effect the automatic lockingof the sashes against accidental downward displacement, from any jarringmotion or the action of the wind from housebreakers, or other cause andyet providel for effecting in a simple and expeditious manner, themanipulation of the lock in lowering-the sash, and to these ends myinvention, consists in the novel combination of parts substantially ashereinafter more fully disclosed and pointed out in the claim.

In the accompanying drawings-Figure 1 is a side view of a window framewith its upper and lower sashes, parts being broken away, embodying myinvention. Figs. 2 and 3 are detailed views of my sash-lock, the latchor dog being shown reversed and Figs. 4 and 5 are detailed plan views ofthe same and Fig. 6 is a modification of the invention.

In the embodiment of my invention I produce it in three castings orpieces, the bracket A, the latch or dog` B and the catch C. The bracketA consists of the verticalbase adapted to be secured by screws orotherwise to the parting bead or letinto the same, and of the face platece integral with said base and iush with its front edge and obscuresfrom view the greater portion of the latch. -The latch or dog B is hungor pivoted, a short distance below its upper end, so as'to standvertically with its tooth normally resting against the basea, its pivotb passing through it and iixed inthe face-plate et and a lug a2 on thebase a of the bracket A. The latch or dog B has kan'outstanding oroutwardly deected upper end b', to permit the convenient manipulationthereof, by the pressure thereupon of the linger toward the base ct ofthe bracket A, when the upper sash is to be lowered. The lower end ofthe latch or dog B, though beveled both inward and outward as at b2,need not, necessarily, be beveled, only inward, and has an upwardlyfacing broad dat shoulder as at b3 near said end and notched or recessedin its forward edge just above said shoulder to cause said shoulder tostandinward instead of being in the form of an oifset, to reduce thelatch to a minimum width. The catch O, preferably a rectangular plate c,adapted to be secured by screws, or otherwise, to the upper sash, hasprojecting from-the upper left hand corner of its said plate a lug cbeveled upon its upper surface inward or toward the latch, and having abroad flat lower surface for engagement with the corresponding uppersurface of the shoulder b3 of the latch B to form therewith a solidinterlocking action, while the beveled meeting surfaces of the latch andcatch, permit-the ready interlocking of said parts. The plate c has atits lower or bottom edge a horizontal ledge or extension c2 to close thenotch or recess cut in the top rail of the lower sash for the passage,in the movement of the upper and lower sashes, of the catch with itslug.

In the modification, as disclosed in Fig. 5, the parts are reversed, ahelping or enabling spring d also being employed, such a spring alsobeing used in the preferred form of the lock, as shown in the otherfigures, if desired, to assist gravity.

The operation of my lock is apparent, as it will be seen that, assumingthe upper sash to be lowered, by pushing upward on said sash, the latchand catch will interlock and said sash be forced j amb tight upward andbe thus held against accidental downward displacement or being otherwisejarred downward, as for instance by the action of the wind or otherforces.

I claim and desire to secure by Letters Patent:

In a sash lock, the combination of the bracket having the face plate atthe front edge In testimony whereof I affix my signature in of itsvertical base, and a, lug, the dog or latch presence of two Witnesses.

hun0f near its upper end, between said faoef 1 plat an d lug and havinga lower beveled end GEROL E GIBSON' and en outwardly defieeted upperend, and Vitnesses: the entoh having at its upper left hand cornerPRESTON GIBSON, a beveled stud, substantially es set forth. HENRY W.BOND.

